waffs awffs wfafs fwafs afwfs fawfs waffs awffs wfafs fwafs afwfs fawfs wffas fwfas wffas fwfas ffwas ffwas affws fafws affws fafws ffaws ffaws wafsf awfsf wfasf fwasf afwsf fawsf wasff awsff wsaff swaff aswff sawff wfsaf fwsaf wsfaf swfaf fswaf sfwaf afswf faswf asfwf safwf fsawf sfawf wafsf awfsf wfasf fwasf afwsf fawsf wasff awsff wsaff swaff aswff sawff wfsaf fwsaf wsfaf swfaf fswaf sfwaf afswf faswf asfwf safwf fsawf sfawf wffsa fwfsa wffsa fwfsa ffwsa ffwsa wfsfa fwsfa wsffa swffa fswfa sfwfa wfsfa fwsfa wsffa swffa fswfa sfwfa ffswa ffswa fsfwa sffwa fsfwa sffwa affsw fafsw affsw fafsw ffasw ffasw afsfw fasfw asffw saffw fsafw sfafw afsfw fasfw asffw saffw fsafw sfafw ffsaw ffsaw fsfaw sffaw fsfaw sffaw
Note: these 'words' (valid or invalid) are all the permutations of the word waffs. These words are obtained by scrambling the letters in waffs.